<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    table,
    th,
    td {
      border: 1px solid #000;
      border-collapse: collapse;

    }

    table {
      width: 500px;
      text-align: center;
      margin: auto;
    }

    caption {
      font-weight: 700;
    }

    table tr:nth-child(1) {
      background-color: #ddd;
    }

    table tr:not(:first-child):hover {
      background-color: #eee;
    }
  </style>
</head>
<body>
  <table>
    <caption>学生信息</caption>
    <tr>
      <th>序号</th>
      <th>姓名</th>
      <th>年龄</th>
      <th>性别</th>
      <th>家乡</th>
    </tr>
    <script>
      let students = [
        { name: '小明', age: 18, gender: '男', hometown: '河北省' },
        { name: '小红', age: 19, gender: '女', hometown: '河南省' },
        { name: '小刚', age: 17, gender: '男', hometown: ' 山西省' },
        { name: '小丽', age: 18, gender: '女', hometown: ' 山东省' }
      ]

      for (let i = 0; i < students.length; i++) {
        document.write(`
      <tr>
      <td>${i + 1}</td>
      <td>${students[i].name}</td>
      <td>${students[i].age}</td>
      <td>${students[i].gender}</td>
      <td>${students[i].hometown}</td>
      </tr>
          `)
      }
    </script>
  </table>
</body>
</html>